I'm still a teen, technically (I'm 19), and I don't see the appeal in any of the subscription services. I don't see the appeal in most of them. Just a way to watch your balance drain every month for something you're not getting your money's worth from. The way I use most TV subscription services is to temporarily subscribe and then cancel once I've watched the show I subscribed for. I could see doing that for TV+ if there was a show I had to see. But a long-term subscription won't be for me.
As for music, well, I'm an audiophile weirdo so I'm a Qobuz/Tidal guy rather than Spotify/Apple Music. But I could see getting into Apple Music if they overhaul the macOS app and bring Apple Music Classical to the Mac.